Investigation of Piezoelectric Ringing Frequency Response of Beta Barium Borate Crystals

Abstract

The piezoelectric ringing phenomenon in Pockels cells based on the beta barium borate crystals was analyzed in this work. The investigation results show that piezoelectric ringing is caused by multiple high voltage pulses with a frequency in the range from 10 kHz up to 1 MHz. Experimental investigation of frequency response and Discrete Fourier transformation was used for analysis. The method of piezoelectric ringing investigation based on the analysis of difference of real and simulated optical signals spectrums was proposed. The investigations were performed for crystals with 3 × 3 × 25 mm, 4 × 4 × 25 mm and 4 × 4 × 20 mm dimensions. It was estimated that piezoelectric ringing in the beta barium borate crystal with dimensions of 3 × 3 mm × 25 mm occurred at the 150, 205, 445, 600 and 750 kHz frequencies of high voltage pulses.

Elastic immersive wave experimentation

“…I believe this oscillation is caused by the lack of the backing mass, which is a critical component of a piezoelectric transducer (Selvadurai et al, 2022;Glaser et al, 1998;Proctor, 1982). Without such a backing mass, the piezoelectric elements will unavoidably oscillate due to remaining motions or momentum, which needs to be damped as fast as possible after the input voltage is removed (Sinkevicius & Baskys, 2019;Vengelis et al, 2019). effectively change the intrinsic resonance frequency of the piezoelectric actuator, which should be away from the frequency band of the voltage signal to avoid the effect of oscillation.…”

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

“…In the author's publications, a stand for measuring the dependence of the optical contrast of a Pockels cell on high voltage pulse duration and frequency has been proposed (Vengelis et al 2019;Sinkevicius et al 2018;Sinkevičius et al 2018;Sinkevicius et al 2019;Sinkevicius et al 2017;Sinkevicius et al 2020). The developed measurement stand allows to investigate the optical response of the Pockels cell at high voltage pulses duration from 130 ns to 5 µs and at frequencies up to 1 MHz.…”

Performance analysis of DKDP electro-optic modulators in the presence of piezoelectric coupling

“…First discovered by Kemp [3] and Hilberg [4] in the late 1960's, the crystal birefringence can oscillate after the initial pulse when operating at high frequencies or modulated with short rise/fall time. If left unsuppressed, this ringing effect can dramatically reduce the efficiency of the crystal [5,6]. Although valuable research has been done to examine the static behavior of the crystal [7] and mitigate piezoelectric ringing [8,9], there has not yet been a published method to simulate the dynamic piezoelectric ringing effect.…”